4951636905 has 32 divisors (see below), whose sum is σ = 7997552640. Its totient is φ = 2615970240.

The previous prime is 4951636897. The next prime is 4951636927. The reversal of 4951636905 is 5096361594.

It is a happy number.

It is not a de Polignac number, because 4951636905 - 2³ = 4951636897 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1261536 + ... + 1265454.

It is an arithmetic number, because the mean of its divisors is an integer number (249923520).

Almost surely, 2^4951636905 is an apocalyptic number.

It is an amenable number.

4951636905 is a deficient number, since it is larger than the sum of its proper divisors (3045915735).

4951636905 is a wasteful number, since it uses less digits than its factorization.

4951636905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701.

The product of its (nonzero) digits is 874800, while the sum is 48.

The square root of 4951636905 is about 70367.8684130761. The cubic root of 4951636905 is about 1704.4447591903. Note that the first 3 decimals are identical.

The spelling of 4951636905 in words is "four billion, nine hundred fifty-one million, six hundred thirty-six thousand, nine hundred five".